Grease can or cartridge



June 14 1927.

F. D. GATCHELL GREASE'CAN oR'cARTRIDGE Original Filed June 16, 1926 Patented June` 14, 1927.

UNITED/,STATES 1,632,594 PATENT OFFICE.

FREDERICK D. GA'rcHELr., or NEW Yoan, N. Y.

GREASE CAN oa CARTRIDGE.

Original application led June 16, 1926, Serial No. 116,433. Divided and this application led September 21', 1926. Serial No. 136,815.

The invention relates more particularly to grease cartons or Containers mainly intended for service with portable grease dispensing apparatus of the type in which the car-` s ton is applied not unlike a cartridge and is discharged by a plunger element; and this application is a division of application, Ser.

No. 116,433, filed June 16, 1926.

TheV object of the invention is to provide lo a simple and comparatively inexpensive original package of lubricant Which will insure quality and quantity of product and which will cooperate with the dispensing apparatus in a highly eicient manner.

The .nature of the invention consists in packing the grease or lubricant in. a cylindrical container or can having a solid or intact bottom closure and a friction seal or movable to closure adapted and arranged to be dislo ged by the plunger element of a grease dispensing apparatus and to operate in advance thereof in such way as to insure the complete discharge of the 'contents of the package through the bottom of the container following the rupture of the bottom closure by a mechanically operated piercing element.

One embodiment of the invention is illustrated in the annexed drawing, wherein- Figure 1 is a vertical sectional view of the can, including end closures. f

Fig. 2 is an end view of the friction seal.

Fig. 3 shows the inverted cup packing or stripping gasket.

sheet metal or other can body 5 is ormed or equipped with an intact or solid metal bottom -closure 6, and with an inside iange or rim seat 7 forming an `element of a friction 4o seal or movable closure. The rim seat 7 may be externally dished or guttered, as at 8, to promote the inherent resilienc thereof, and its inner edge may have a epending skirt 9. The merit of .the skirt is that it rovides increased areaof friction surface or the movable closure.' The latter is a sheet metal disk 10 adapted and arranged for sliding movement in the can. The disk 10 is stamped or otherwise formed with an upstanding boss or crown portion 11 designed to frictionally engage the flange or rim seat 7. The major diameter. of the disk is substantially the same as the inside diameter of the can. At an rate it is desirable to establish a snug tit etween the margin According to my invention a c lindrical.

12 and the can. Thepresence ofthe bead 13 is advantageous in that it promotes sliding action.

Intermediate the movable end closure or disk 10 and the grease or other filling is a packing disk 14. The latter may well be constructed of material such as leather, tough paper or the like. Its oilice is to prevent grease from bypassing the disk 10, when the can is being discharged and to thoroughly strip the can. These results are accomplished by providing a flexible disk initially of greater diameter than the inside diameter of the can and imparting to it the cup shape shown. The cup disk is applied in inverted state so that in response to pressure upon the disk its Skirt or margin 15 will frictionally engage the can body and thoroughly scrape or strip the same.

In practice, following the rupture of the bottom closurek by a mechanicallyoperated die or piercing element, for example in the manner disclosed in the application hereinbefore referred to, the disk 10, will be, impinged upon by the plunger element of the apparatus and under exerted force will move downwardly and so move the packing and stripping disk 14, the advanced rim of which will tightly bind against lthe inner wall of the can thoroughly scraping the same and preventing any grease from bypassing the disk 10.

Having described myinvention, I claim- 1. A grease container of the character stated, comprisin a can having end closures whereof one is so id and designed to be ruptured and whereof the other is slidable under exerted pressure and is provided with a boss, and an annular ange on the can in frictional sealing relation with lthe boss.

2. A grease container of the character stated, comprising a can having end closures whereof one is solid and designed to be ruptured and whereof the other is slidable under exerted pressure and is provided with an outwardlyzdirected boss, a rim seat to accommodate the boss and forming therewith a friction seal, and al stripper intermediate the grease and the lslidable closure.

3. A grease container of the character stated, comprising a can having end closures whereof oneis solid and designed to be ruptured and whereof the other is slidable under exerted pressure, said slidable closure consisting of a disk having an endwise dillo rected boss, and a collar winthin the can consisting of a disk having an endwise dibody to cooperate with the boss in friction rected boss, a collar within the can body to 10 seal relation. l cooperate with the boss in friction seal re- 4. A grease container of the character lation, and an inherently resilient rim lock 5 stated, comprising a can having end closures adapted and arranged to cooperate with the whereof one is solid and designed to be rupboss to establish a friction seal. tured and whereof the other lis slidable un- In testimony whereof I aix my signature.

der exerted pressure, said slidable closure FREDERICK D. GATCHELL. 

